Numeric permissions
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==How permissions are defined== | ==How permissions are defined== | ||
permissions are shown when you do an '''ls -l''' on a file or directory: | permissions are shown when you do an '''ls -l''' on a file or directory: | ||
| − | + | [dave]@deus ~ % ls -l | |
| + | total 4 | ||
| + | drwxr-x--- 2 dave dave 512 Sep 12 03:27 bin | ||
| + | drwxr-x--- 2 dave dave 512 Sep 12 03:27 oldstuff | ||
| + | -rw-r----- 1 dave dave 0 Sep 12 03:22 personal.info | ||
| + | -rw-r--r-- 1 dave dave 0 Sep 12 03:20 phone.numbers | ||
| + | -rw-r--r-- 1 dave dave 0 Sep 12 03:20 privatefile | ||
| + | -rw-r----- 1 dave dave 0 Sep 12 03:24 shopping.list | ||
| + | lrwxr-x--- 1 dave dave 13 Sep 12 03:28 useful -> useful.script | ||
| + | -rwxr-x--- 1 dave dave 0 Sep 12 03:25 useful.script | ||
| + | [dave]@deus ~ % | ||
| + | |||
| + | Those -rw-r----- bits are the permissions of the file and they break down as follows: | ||
| + | - the first bit tells you whether this is a directory, a link or a regular file | ||
| + | the - indicates it's a regular file, a '''d''' for directory or an '''l''' for link | ||
| + | |||
this needs: | this needs: | ||
Revision as of 02:49, 12 September 2004
How permissions are defined
permissions are shown when you do an ls -l on a file or directory: [dave]@deus ~ % ls -l total 4
drwxr-x--- 2 dave dave 512 Sep 12 03:27 bin drwxr-x--- 2 dave dave 512 Sep 12 03:27 oldstuff -rw-r----- 1 dave dave 0 Sep 12 03:22 personal.info -rw-r--r-- 1 dave dave 0 Sep 12 03:20 phone.numbers -rw-r--r-- 1 dave dave 0 Sep 12 03:20 privatefile -rw-r----- 1 dave dave 0 Sep 12 03:24 shopping.list lrwxr-x--- 1 dave dave 13 Sep 12 03:28 useful -> useful.script -rwxr-x--- 1 dave dave 0 Sep 12 03:25 useful.script [dave]@deus ~ %
Those -rw-r----- bits are the permissions of the file and they break down as follows:
- the first bit tells you whether this is a directory, a link or a regular file the - indicates it's a regular file, a d for directory or an l for link
this needs:
-a comparison between unix permissions and windows permissions
-an explanation of owner, group and other permissions
-exp of diffs between dir permissions and file permissions
-d
